Lang & Heyne - Manufaktur für feine Uhren


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  • DIAMETER 16 ¼ lines (36,6 mm)
  • FREQUENCY 18.000 semi-oscillations
  •   per hour
  • RUNNING TIME 46 hours
  • JEWELS 19 rubies, 1 diamond
  • Shock-resistant gold-screw balance
  • Breguet spring
  • Swan-neck fine adjustment
  • Pulsating eccentric sweep hand
  • Sweep hand stop mechanism
  • Winding wheels with double solar finish
The typical three-quarter plate has been state of the art in the building of fine movements in Saxony since the end of the 19th century. Our Caliber I is an honest tribute to that heritage emphasizing typical elements not only of function, but also of beauty: big shining rubies, set in gleaming gold châtons, create a balanced contrast to the silver finished plate. Even the smallest of the stones, the one that holds the lever anchor is set in a gold châton, held by deeply blued steel screws.

The meticulous anglesite finishing, polished by hand with pewter, of the anchor bridge and the balance cock as well as the slit golden screws of the balance wheel create charming reflections of light. The polishing of the winding wheels gives the impression of a shining sun. The ultimate in beauty, however, is the sparkling diamond, crowning the balance. Majestically it is placed on top of the hand engraved balance cock, harmonizing perfectly with the elegantly swung swan-neck fine adjustment.

The balance spring bent markedly upward in its last winding ensures smooth pulse of the shock-resistant gold-screw balance wheel. Caliber I is equipped with a sweep hand stop mechanism, in other words, when the crown has been pulled out, a spring gently bends itself around the balance shaft and the sweep hand stops, hence permitting the watch to be set accurately to the second.

The Caliber 1 is the heart of the models:


Friedrich August I.



König Johann
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